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Population-Based Prevention of Child Maltreatment: The U.S. Triple P System Population Trial.

NCJ Number
Prevention Science Issue: 10 Dated: 2009 Pages: 1-12
Date Published
12 pages

In this evaluation of a public health approach to the prevention of child maltreatment, the U.S. Triple P System Population Trial, 18 counties were randomly assigned to either dissemination of the Triple P—Positive Parenting Program system or to the services-as-usual control condition. 


Dissemination involved Triple P professional training for the existing workforce (over 600 service providers), as well as universal media and communication strategies. Large effect sizes were found for three independently derived population indicators: substantiated child maltreatment, child out-of-home placements, and child maltreatment injuries. This study is the first to randomize geographical areas and show preventive impact on child maltreatment at a population level using evidence-based parenting interventions. (publisher abstract modified)

Date Published: January 1, 2009